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Sensors 2018, 18(1), 223; https://doi.org/10.3390/s18010223

Smartphone Spectrometers

1
Department of Geography, University of Sheffield, Sheffield S10 2TN, UK
2
School of Geosciences, The University of Sydney, Sydney 2006, Australia
3
Department of Electronic and Electrical Engineering, University of Sheffield, Sheffield S1 4DE, UK
4
Geronimo Creek Observatory, Seguin, TX 78155, USA
5
Faculty of Health, Engineering and Sciences, University of Southern Queensland, Toowoomba, QLD 4350, Australia
*
Author to whom correspondence should be addressed.
Received: 8 December 2017 / Revised: 5 January 2018 / Accepted: 11 January 2018 / Published: 14 January 2018
(This article belongs to the Special Issue Spectroscopy Based Sensors)
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Abstract

Smartphones are playing an increasing role in the sciences, owing to the ubiquitous proliferation of these devices, their relatively low cost, increasing processing power and their suitability for integrated data acquisition and processing in a ‘lab in a phone’ capacity. There is furthermore the potential to deploy these units as nodes within Internet of Things architectures, enabling massive networked data capture. Hitherto, considerable attention has been focused on imaging applications of these devices. However, within just the last few years, another possibility has emerged: to use smartphones as a means of capturing spectra, mostly by coupling various classes of fore-optics to these units with data capture achieved using the smartphone camera. These highly novel approaches have the potential to become widely adopted across a broad range of scientific e.g., biomedical, chemical and agricultural application areas. In this review, we detail the exciting recent development of smartphone spectrometer hardware, in addition to covering applications to which these units have been deployed, hitherto. The paper also points forward to the potentially highly influential impacts that such units could have on the sciences in the coming decades. View Full-Text
Keywords: smartphone spectrometers; smartphone spectroscopy; low cost scientific instrumentation; medical diagnostics; food quality inspection; environmental monitoring smartphone spectrometers; smartphone spectroscopy; low cost scientific instrumentation; medical diagnostics; food quality inspection; environmental monitoring
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McGonigle, A.J.; Wilkes, T.C.; Pering, T.D.; Willmott, J.R.; Cook, J.M.; Mims, F.M.; Parisi, A.V. Smartphone Spectrometers. Sensors 2018, 18, 223.

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